I believe there's no justification for ism, I've argued it here before.
I'd just like to tell you all about a family friend, they work in Britain for an airline. I think it shows how people become ist supporters, although this person is not, they feel they've seen enough destruction.
Their family is Palestinian, who lost all their land, property and livelihood as Israel expanded. As refugees they went to Jordon, from where they were accepted by Gadaffi's Libya.
Gadaffi's Government built them a big house, gave them a nice job, and compensated the dollar for dollar for all they lost.
'Their' life experience was:
Israel and those who support them primarily today the US = evil(for taking everything from them and destroying their lives for simply being born into the wrong religion - as they experienced it)
Gadaffi = wonderful (for taking them in and rebuilding their lives).
That is their experience, how ever much it differs from ours in the west and with our beliefs and view of the world.
Then of course, in the US air raids people they knew, their friends in some cases, died. That re-inforced the 'evil' view of America, from their place in the world the US State supports those that ised them and is ising them (by making them fear for their lives and taking those of people they knew) in their new home.
For them, their only experiences of the US and it's allies have brought them and destruction. Their only experiences of the 'terrorist' countries, is one of salvation.
There's not a lot you can do, to convince people that have lived that life, that good and bad are the other way around. As we have seen in the west, many want retribution for . Many from this sort of background feel the same, but their view - because of their lifes path are very different.